Paint roller



FIG. 1 is a front elevational view of a paint roller showing my design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left end elevational view thereof;

FIG. 4 is a right end elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a perspective view thereof. 

The ornamental design for paint roller, substantially as shown and described. 